package cn.fay.chapter14;

import java.util.LinkedHashMap;

public class MapData<K,V> extends LinkedHashMap<K, V> {
	
	public MapData(Generator<Pair<K, V>> gen,int quantity){
		for (int i=0; i<quantity; i++) {
			Pair<K, V> p=gen.next();
			put(p.key, p.value);
		}
	}
	public MapData(Generator<K> genK,Generator<V> genV,int quantity){
		for (int i=0; i<quantity; i++) {
			put(genK.next(), genV.next());
		}
	}
	public MapData(Generator<K> genK,V value,int quantity){
		for (int i=0; i<quantity; i++) {
			put(genK.next(), value);
		}
	}
	public MapData(Iterable<K> genK, Generator<V> genV) {
	    for(K key : genK) {
	      put(key, genV.next());
	    }
	  }
	 public MapData(Iterable<K> genK, V value) {
		    for(K key : genK) {
		      put(key, value);
		    }
		  }
	 // Generic convenience methods:
	public static <K,V> MapData<K,V> map(Generator<Pair<K,V>> gen, int quantity) {
		return new MapData<K,V>(gen, quantity);
	}
	public static <K,V> MapData<K,V> map(Generator<K> genK, Generator<V> genV, int quantity) {
		return new MapData<K,V>(genK, genV, quantity);
	}
	public static <K,V> MapData<K,V> map(Generator<K> genK, V value, int quantity) {
		return new MapData<K,V>(genK, value, quantity);
	}
	public static <K,V> MapData<K,V> map(Iterable<K> genK, Generator<V> genV) {
		return new MapData<K,V>(genK, genV);
	}
	public static <K,V> MapData<K,V> map(Iterable<K> genK, V value) {
		return new MapData<K,V>(genK, value);
	}
}
